json files in python code example

Example 1: python read json file

import json

with open('path_to_file/person.json') as f:
  data = json.load(f)

print(data)

Example 2: open json file python

import json

with open('data.txt') as json_file:
    data = json.load(json_file)

Example 3: python dictionary to json

import json

appDict = {
  'name': 'messenger',
  'playstore': True,
  'company': 'Facebook',
  'price': 100
}
app_json = json.dumps(appDict)
print(app_json)

Example 4: python json open file

import json

#reading
with open(file_name, 'r') as f:
	data = json.load(f)

#writing
with open(file_name, 'w') as f:
	json.dump(data, f) #use indent to make easyer to read eg. indent = 4

Example 5: python json file operations

import json # Imports the json file that we need
with open("jsonfile.json", "r") as jsonFile: # Opens Json file for reading
	data = json.load(jsonFile) # Reads Json file using json.load() method
'''
Example Json File:
[{"name": "Bill", "age": 20},
{"name": "Mary", "age": 31},
{"name": "Jake", "age": 19}]
'''
data[1]["age"] = 32 # Alters data variable
''' 
Now the data variable is:
[{"name": "Bill", "age": 20},
{"name": "Mary", "age": 32},
{"name": "Jake", "age": 19}]
'''
with open("jsonfile.json", "w") as fileJson: # Opens Json file once again
  json.dump(data, fileJson) # Replaces the Json file using json.dump() method

Example 6: python json load file

import json

# with json load  (file)
info = open('data.json',)
res = json.load(info)
print(res)
print("Datatype after deserialization : " + str(type(res)))
#>>> {'name': 'Dave', 'City': 'NY'}
#>>> Datatype of the serialized JSON data : <class 'dict'>